电气现象:感应。感应器是感应器的倒数。1925年的匿名插图。私人收藏。(Electrical phenomena: induction. The induced is the inverse of the inductor. Anonymous illustration from 1925. Private collection.)匿名匿名 |
€ 98.15
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日期不详 · Engraving
· 图片ID: 925424
Private Collection / Bridgeman Images |
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